Production Plan Weekly

I have a question regarding a production plan which I would like to my model. Currently, the parts are produced regarding Make-to-Order strategy in the supplier. (Total production lead time together with transportation is around 4 weeks. 2 weeks preparation + 1 week production + 1 week transportation ) Therefore, I need to use exact numbers for my parts, which are the same as the production plan ( 4 week ahead ). Therefore, I would like to ask everyone if there is an example of a "Source", which takes the amount to be produced per part weekly ( updated ) and loads all products to a container ( 1 batch) at the end of the week and ship to the customer.